/*********************************************************************************
 * Software License Agreement (BSD License)
 * Copyright (c) 2012, Carlos D. Correa (info@ngraph.org)
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of netzen nor the
 *    names of its contributors may be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *********************************************************************************/
#ifndef VIEW_MANAGER_H
#define VIEW_MANAGER_H
#include "glheaders.h"
#include "controller.h"
class View;
class ViewManager: public ViewListener {
	vector<View*> views;
	vector<int> orderRendering;
	
	int curstate;
	int curbutton;
	
	bool shiftPressed, ctrlPressed;
	float lastx, lasty;
	float lastwx, lastwy;

	double P[16], M[16]; 
	GLint V[4];

protected:
	bool click(float x, float y, int modifiers);
	void release(float x, float y, int modifiers);
	void drag(float x, float y, float dx, float dy, int modifiers);
	void mouseMove(float x, float y, float dx, float dy, int modifiers);
	void toWorld(int ix, int iy, float &x, float &y);
	
	
public:
	Controller * controller;
	ViewManager(Controller *controller);
	void render();
	void handleKey(unsigned char key, int , int);
	void tic();
	void mouseEvent(int ix, int iy, int button, int state, int modifiers ) ;
	void mouseMoveEvent(int ix, int iy, int button, int modifiers);
	void resize(int w, int h);

	void drawViews();
	void moveToTop(int top);
	void viewAdded(View *view);
	
};

#endif
